592 migrant workers' children are selected to investigate their learning adaptability, parental rearing styles and study self- efficiency through questionnaire so as to explore the function of students' study self- efficacy in parental rearing style's effect on learning adaptability. The results show: study self - efficiency plays a mediating role in the parental rearing style's effect on study self- efficiency, most of which has a relatively great effect in the factors such as fatherly affection and understanding, mater...